import Vue from 'vue'
import Router from 'vue-router'
import Login from '../components/Login'
import Home from '../components/Home'
import Welcome from '../components/Welcome'
import Users from '../components/user/Users'

Vue.use(Router)
/* eslint-disable */
const router = new Router({
  routes: [
    { path: '/', redirect: '/login'},
    { path: '/login', component: Login},
    { path: '/home',
      component: Home,
      redirect: '/welcome',
      children: [
        {path: '/welcome',component: Welcome},
        {path: '/users',component: Users}
      ]
    }
  ]
})
//挂在路由导航守卫
router.beforeEach((to,from,next) => {
  //to 将要访问的路径
  //from 从哪个路径来的
  //next 是一个函数，表示放行
  //next()放行  next('/login')强制跳转
  if(to.path === '/login') return next()
  //获取token
  const tokenStr = window.sessionStorage.getItem('token')
  //没有token,强制跳转到登陆页面
  if(!tokenStr) return next('/login')
  next()
})


export default router
